Correlation between mechanical scales and analysis scales of topographic signals under milling process of natural fibre composites
TypeArticles dans des revues avec comité de lecture
This article aims to find the relation between the multiscale mechanical structure of natural fibre reinforced plastic composites and the analysis scales in the topographic signals of machined surfaces as induced by profile milling process. Bamboo, sisal and miscanthus fibres reinforced polypropylene composites were considered in this study. The multiscale process signature of natural fibre reinforced plastic machined surfaces based on wavelet decomposition was determined. Then, the impact of wavelet function was inspected by testing different wavelet shapes. Finally, the analysis of variance was carried out to exhibit the contribution rate of fibre stiffness and tool feed on the machined surface roughness at each analysis scale. Results demonstrate that studying the machining of natural fibre reinforced plastic requires the selection of the relevant scales. They show also the insignificance of the wavelet choice. This study proves that the contribution rate of fibre stiffness and tool feed on machined surface roughness is significantly dependent on the analysis scales, which are directly related to the mechanical properties of natural fibres structure inside the composite.
Files in this item
Showing items related by title, author, creator and subject.
CHEGDANI, Faissal; MEZGHANI, Sabeur; EL MANSORI, Mohamed (Elsevier, 2015)Recently, natural fiber reinforced plastic (NFRP) materials are becoming a viable alternative to synthetic fiber in many industrial applications which not require high structural performances. However, machining of NFRP ...
CHEGDANI, Faissal; MEZGHANI, Sabeur; EL MANSORI, Mohamed (ELSEVIER, 2015)This work aims to investigate the tribological effects of coated tools on the surface finish of natural fiber reinforced plastics (NFRPs) during profile milling process with particular emphasis on the natural fiber cutting ...
CHEGDANI, Faissal; EL MANSORI, Mohamed; MEZGHANI, Sabeur; MONTAGNE, ALEX (ELSEVIER, 2017)The nature of friction of vegetal fiber and polymeric matrix in bio-composite materials is very important for many industrial applications. In order to design natural fiber composites for structural applications, the ...
On the multiscale tribological signatures of the tool helix angle in profile milling of woven flax fiber composites CHEGDANI, Faissal; MEZGHANI, Sabeur; EL MANSORI, Mohamed (ELSEVIER, 2016)The present study is focused on tribological and multiscale analysis for the machined surfaces of bi-directional flax fibers reinforced polypropylene composites. This is to track the multiscale effect of the helix angle ...
CHEGDANI, Faissal; EL MANSORI, Mohamed (ELSEVIER, 2018)This paper aims to study the machinability of natural fiber reinforced thermoplastic composites by investigating the mechanics of chip formation and the multiscale cut surface's quality induced by the orthogonal cutting ...